baber/WOPTO huggingface dataset:
Patent GB-642623-A (GB)
Title: Pressure releasable latching device
IPC: E05C19/02
Filed: 1948-04-26
Abstract: 642,623. Automatic catches. PHILLIPS TUTCH-LATCH CO. April 26, 1948, No. 11402. Convention date, July 7, 1947. [Class 44] The catch described in Specification 619,442 is modified by the provision of a spring 31, Fig. 8, to return the keeper 30 to neutral position. In the modified catch, the U-shaped mounting for the keeper comprises a base portion 20, Fig. 2, of considerable width and provided with two slots 23 for fixing screws, and a narrower front portion 22, the keeper 30 being pivoted on a pin 29 extending between the two portions. The forward edge of the base 20 is preferably provided with an abutment 27. The tension spring 31, Fig. 8, is hooked into one of a pair of ears 32 and into one of a pair of holes in the connecting part of the mounting; the keeper may thus be mounted in inverted position if necessary. The latch member consists of a metal stamping; Fig. 3 and 4, with a base 41, and a limit portion 42 extending at right angles to the base. The ends of the base are preferably curved upwardly at 43. An extension of the base carries turned-up prongs 45, 46 which in operation make contact with the keeper and with the edges of the part 22 of the keeper mount. The action of the device is as described in Specification 619,442. In fitting, the keeper mount is aligned by bringing the parts together with the fixing screws of the mount loose in the slots 23, Fig. 2. Contact of the prong 45 with the upper edge of the part 22 prevents sagging of the door in use. A modified form of mount for attachment to a narrow stile, shelf. &c., is shown in Fig. 22, while Fig. 26 shows a form in which two keepers 30 for latching two doors meeting edge to edge are mounted in a fixture 70 secured to a shelf 75.
Patent GB-1435123-A (GB)
Title: Laying pipelines
IPC: F16L1/24
Filed: 1973-03-09
Abstract: 1435123 Stabilizing pipe-lines SEA & LAND PIPELINES Ltd 22 May 1974 [9 March 1973] 11526/73 Addition to 1276468 Heading F2P A pipe-line 1 is layed continuously on the sea-bed 3 from surface vessel (2) and stabilized on the sea-bed by means of coverings 7 which completely cover the pipe-line 1. The coverings 7 each comprise a flexible outer skin containing a mixture of loose aggregate and a settable material and are positioned on the pipe-line prior to the settable material setting to bond the aggregate into a rigid mass lying across the pipe-line. The aggregate may be magnetite or haematite and the coverings may be internally reinforced by layers of polypropylene or steel netting. The coverings 7 are lowered on to the pipe-line 1 by crane (8) from a second surface vessel (9) and positioned with the aid of television camera (11) attached to frame (10). When in position the covering 7 is released from frame (10) and lies over the pipe-line 1 to provide stabilization of and protection to the pipe. line.
Patent GB-579373-A (GB)
Title: Improvements in training devices for use in computor gun sights
IPC: F41G3/26
Filed: 1943-07-15
Abstract: 579,373. Aiming practice for firearms. BLOOD, A., GLENNY, A. P., and SPERRY GYROSCOPE CO., Ltd. July 15, 1943, No. 11539. [Class 119] A training device enabling an instructor to check the manner in which a gunner is controlling a gun, particularly when following a moving target, such as a model aircraft or image projected on 'a cinematograph screen, with a gun provided with computing gunsights which apply corrections automatically to an optical sighting system in accordance with the rate of angular movement of the gun, comprises an optical light projector which throws a beam of light on to a dummy target &c. towards which the'line of sight is directed, the projector being mounted so as to follow the movements of the line of sight. The diameter of the projected beam of light may be varied synchronously with range corrections made by the gunner in endeavouring to match the apparent diameter of the target with. an adjustable frame or system of spaced markings. For sighting, an image of crossed wires in an adjustable range light gate 2 is projected by a lamp 1 via a tilting mirror 3, collimating lens 4, inclined reflecting plate glass window 5 and colour filter, e.g. green glass 6, on to the dummy target &c. The sighting system traverses with the gun, elevational corrections being applied by the gear-wheel 50 of the computor mechanism to a toothed sector 27 pivoted at 27<1> and carrying the mirror 3. Movements of the sector are transmitted through a roller 26, push-rod 24, plate 23, roller 22, lever 21 and adjustable link 18 to the optical light projector 11 which is pivoted at 12 and has a holder 13<1> for a lamp which projects a beam of light through a condensing lens, iris diaphragm and colour filter, e.g. red glass, so that the lightspot thrown on to the dummy target &c. is not visible to the gunner. The beam from the projector is first adjusted to coincide with the image on the dummy target. The iris diaphragm is connected by a Bowden wire 28 to the range light gate 2, and the gunner then operates the gun to follow the target. Sighting movements are reproduced by the light beam and corrections applied to the range light gate by the gunner are transmitted to the iris diaphragm in the projector to produce a corresponding variation in the diameter of the light beam. " Firing " is registered by pressing a switch 32, Fig. 4, which breaks a direct circuit through the projector lamp 13 which is then illuminated only intermittently by a continuously running cam-operated switch 35.
Patent GB-940460-A (GB)
Title: Improvements relating to metal cutters and metal cutting
IPC: B23C5/20
Filed: 1961-03-29
Abstract: 940,460. Cutting tools. FAGERSTA BRUKS A.B. March 29, 1961 [April 6, 1960], No. 11551/61. Heading B3B. A reversible prismatic cutting bit 12 of triangular, square or pentagonal form with two parallel base surfaces and side surfaces at rightangles thereto, is provided at the edges between its side surfaces with bevelled clearance surfaces 13 which are oblique in relation not only to the side surfaces but also to the axis 19 of the prism. Each bevelled surface forms an edge with one only of the two base surfaces.
Patent GB-270701-A (GB)
Title: An improved holder for photographic flat films with a clamping device for the edges of the films
IPC: G03D13/12
Filed: 1927-04-30
Abstract: 270,701. I. G. Farbenindustrie Akt.- Ges., (Assignees of Becker, 0.). May 5, 1926, [Convention date]. Holders, plate and like.-A holder provided with devices for clamping the edges of the film, for use in developing &c. operations, is characterized in that the clamping-devices have wedge-shaped slots to facilitate insertion of the film, and means in each device for clamping the film against one edge of the slot. In the form shown, a rectangular frame as of bent wire, having at its upper end a crossmember to facilitate handling, has attached to its side members J clamping-devices each comprising a member 3 of U-section bent from strip metal, the arms of which lie parallel to the plane of the holder frame, and are bent at their ends to provide flanges 5. 5' so shaped that between them is provided a wedge-shaped entrance slot 6 for the edge of the film. Secured inside the member 3 is a spring arm 8, normally resting behind the flange 5, and engaged by the too 9 of a lever 11 pivoted at 10 to the member 3. When this lever is turned from the chain-dotted to the full-line position, its toe 9 displaces the member 8 across the slot 6, so that the edge of the film is bent round the flange 5<1>, and thereby securely clamped
Patent GB-513739-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/24
Filed: 1938-04-19
Abstract: 513,739. Cathode-ray tubes : luminescent materials. FERNSEH AKT.-GES. April 19, 1938, No. 11716. Convention date. April 15. 1937. [Class 39 (i)] In order that the luminescent screen of a cathode-ray tube may be readily cooled it is mounted on an opaque sheet of metal forming part of the envelope and adapted to be cooled on its outer surface. Fig. 1 shows a screen 4 mounted on a metal sheet 6 the edges of which are sealed into the envelope 1. Coding-liquid such as water or oil, or gas, such as ammonia, may be circulated inside the space behind the plate 6 through pipes 8, 9. The screen is scanned by a beam from an electron gun 3 in a side arm 2 and the image is projected by a lens 5, the light passing through the plane end wall 10 of the envelope. In the arrangement shown in Fig. 2 the plate 6 forms the bottom of a receptacle which may be filled with liquid air, the envelope of the tube forming a double wall which may be silvered internally at 16, as in a Dewar flask. The electron gun 3 is arranged at the other end of the tube and the image projected by a lens 5 and inclined mirror 15. The tube may be formed with a joint 17 which can be broken when it is desired to change the screen. The sheet 6 may be of copper provided with a chrome iron edge for sealing to the glass and coated with aluminium or platinum to protect it from the luminescent material.
Patent GB-123480-A (GB)
Title: Improvements in Tractors.
Inventor: HARTSOUGH RALPH BEEBE
IPC: A01B71/06
Filed: 1918-07-17
Abstract: 123,480. Hartsough, R. B. July 17, 1918. Traction engines, internal-combustion engine.- A tractor preferably driven by an internal-combustion engine is built up chiefly of cast metal parts which can be assembled with the minimum amount of fitting. The frame 13, Fig. 1, is a cylindrical casting with sockets 14 for the axles of the rear driving wheels 4. A forward projection 5, Fig. 5, on the frame near one driving wheel is adapted to receive one end of a wooden beam 6 which is secured therein by a block 7 fastened to the projection bv bolts &c. 9 passing through slots for adjustment. The beam has the single steering wheel 36 mounted at its front end. The block 7 has an inclined upper surface 8, Fig. 4, with slots 11<a> forming an adjustable support for the engine. A forward arm 14<1>, Fig. 7, near the other end of the frame 13 carries an adjustably mounted bearing 15 for a countershaft 16 which is also supported in a similar bearing 17 on the beam, the countershaft having pinions 20 engaging gears 21 on the road wheels. The transmission gear consists of a pinion 26 slidably mounted on the engine shaft and provided with a clutch for engagement with a second pinion 25 gearing with a gear wheel 24 carrying bevel pinions 29 engaging differential wheels 28, 30, mounted on the two parts of the divided countershaft. To facilitate steering, spring-pressed brake blocks 48 operated automatically by cables 47 oppositely connected to the steering post 43 are adapted to engage the differential wheels, the cables having intermediately placed springs 48<b> forming a lost-motion connexion. The two-part reversing pinion 31 is mounted on a rocking arm and operated by a lever 32 to bring it into engagement when required with the pinion 26 and gear-wheel 24. The driving wheels 4 have spokes 49', the outer ends of the spokes being seated in recesses 50 in the rim and the inner ends in recesses in lugs 48' on the hub, and in a slidable ring 51 secured by bolts 52.
Patent GB-1010836-A (GB)
Title: Improved magnetic ferrite core compositions
IPC: C04B35/26
Filed: 1964-03-20
Abstract: 1,010,836. Magnetic compositions. AMPEX CORPORATION. March 20, 1964, No. 11870/64. Heading H1H. A square loop nickel manganese ferrous ferrite has a composition within the area ABCD on the diagram with not more than 2 mol. per cent of impurity such as zinc, tin, lithium or aluminium. Examples are given of toroidal cones made by grinding the raw materials, adding binders and lubricants, pressing and sintering in the absence of air at between 2350 and 2500 F., cooling slowly to 1900 F. and then quickly to room temperature. A suitable atmosphere for the sintering process is CO 2 . Tables are given of measurements made on these cores in switching tests. Specification 849,464 is referred to.
Patent GB-1490403-A (GB)
Title: Sheeter deliveries for use with rotary presses
IPC: B41F13/54
Filed: 1975-03-21
Abstract: 1490403 Delivering sheets MITSUBISHI JUKOGYO KK 21 March 1975 [25 March 1974] 12039/75 Heading B8R A sheet delivery for a rotary printing press comprises a cutting cylinder 2 which carries cam operated sheet piercing pins 11 and sheet ejecting members 18, a take-up cylinder 3 which carries cam operated grippers 19 and a delivery gripper 21 for depositing sheets on a stack against stop 27. Sheets cut from web 1 are collected in sets of three on pins 11 and the sets are transferred to the cylinder 3 by ejecting members 18. Belt 29 guides the sheets into the grippers 19 of the take-up cylinder.
Patent GB-858289-A (GB)
Title: Improvements relating to the granulation of pulverous material
IPC: B01J8/16
Filed: 1957-04-12
Abstract: 858,289. Granulating-machines. FAKBENFABRIKEN BAYER A.G. April 12, 1957 [April 19, 1956 ; Nov. 6, 1956], No. 12090/57. Class 87(2). Granules are formed from a fine powder by feeding the powder from a hopper 1 through an adjustable outlet onto a vibrating screen 2, having balls 2a or rotating brushes to break up lamps. The material falls onto a screen 3 and granules formed on the screen 3 trickle off onto a conveyer 6 and are fed with the fines, which fall through the screen into a hopper 5, to a fluidised bed chamber 7 to which air is supplied through orifices 8. The granules are withdrawn through a hopper 10. In a modification, Fig. 2, the powder is first compressed between double belts 12 to form small plate-like structures.
Patent GB-396010-A (GB)
Title: Improvements in or relating to the manufacture of plaited incandescent mantles
IPC: F21H3/00
Filed: 1933-04-25
Abstract: 396,010. Incandescent mantles. DEUTSCHE GASGLœHLICHT-AUERGES., 16, Rotherstrasse, Berlin. April 25, 1933, No. 12111. Convention date, May 17, 1932. [Class 75 (i).] In the manufacture of plaited incandescent mantles having longitudinal ribs, the ribs are composed of a yarn which will shrink to a higher degree during the manufacture than the yarn employed for the rest of the mantle. The body of the mantle may be made of artificial silk or ramie and the ribs of cotton.
Patent GB-543514-A (GB)
Title: Improvements in or relating to woven fabric
IPC: D03D11/00
Filed: 1940-07-24
Abstract: 543,514. Woven fabrics. HASSAN, Ltd., V., and TENNANT, J. A. July 24, 1940, Nos. 12112/40 and 9355/41. Drawings to Specification. [Class 142 (iv)] A fabric comprising a double sided cloth having plain weft threads and plain and contrasting warp threads is woven with an ornamental design on the face and a plain reverse side. The plain reverse side may be raised by a subsequent finishing process, and when the plain weft and warp threads are of cotton, the fabric so raised present a uniform surface substantially imprenetrable by artificial light. The ornamented warp threads may be of artificial or real silk, or alternatively metallic warp threads may be used. A fabric suitable for garments, such s dressing gowns, is obtained by replacing the. cotton by wool. The weft threads and all the warp threads may be wool, the warp threads to form the ornamental design being of contrasting colour.
Patent GB-760218-A (GB)
Title: Finishing of workpiece surfaces
IPC: B24B31/00
Filed: 1952-05-13
Abstract: 760,218. Grinding or polishing spoons &c. WURTTEMBERGISCHE METALLWARENFABRIK. May 13, 1952 [May 17, 1951], No. 12135/52. Addition to 678,058. Drawings to Specification. Class 60 A device for grinding or polishing the surfaces of workpieces, such as spoons, comprises a centrifugal drum containing a powdery granular or pasty material which forms an annular mass, into which the workpieces are at least partly immersed, when the drum is rotated about a central vertical axis, the drum having an internal diameter of at least 2 metres and a speed not exceeding 150 revolutions per minute. The speed of the drum in revolutions per minute preferably lies within one of the following ranges:- where D is the diameter of the drum in metres. The device is the same as that described in the parent Specification.
Patent GB-902958-A (GB)
Title: Improvements relating to power supply arrangements
Inventor: KING KENNETH GORDON
IPC: H04B3/36
Filed: 1957-10-16
Abstract: 902,958. Automatic current and voltage control systems. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Oct. 16, 1958 [Oct. 16, 1957], No. 12237/62. Divided out of 902,957. Class 38 (4). A telephone cable is supplied from both ends by rectifier sets which are arranged to normally supply a constant current provided the output voltage does not rise above a set value. The two characteristics therefore intersect, Fig. 9 (not shown), so that the two sets divide the total voltage between them. Each set is basically as shown in Specification 902,957, but the magnetic current discriminator D, which controls the output current, is connected in series with the D.C. terminals of a bridge rectifier AM5, the A.C. energization of which is controlled by a transductor 21 in accordance with the output voltage of the main rectifier. The output of the transductor thus rises with output voltage and is arranged to be larger than the cable current through rectifier AM5 when the voltage reaches its limiting value. Thereafter the discriminator D becomes energized via diode AM6 in accordance with the output voltage and the output is reduced to hold the voltage at this upper limit. The transductor 21 may be replaced by an impedance energized over an isolating transformer from the A.C. input to the main rectifier.
Patent GB-118439-A (GB)
Title: Improvements relating to Springs.
Inventor: RIGBY GEORGE EDWIN
IPC: B62K25/24
Filed: 1917-08-27
Abstract: 118,439. Rigby, G. E. Aug. 27, 1917 Laminar springs. -The butt end of a quarter laminar spring a is secured in a clamp b which is pivoted at k to a bracket f. The bracket is provided with an adjusting screw d and a locking bolt h working in slot c.
Patent GB-706379-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P7/298
Filed: 1952-05-15
Abstract: 706,379. Control of D.C. motors. BRITISH THOMSON-HOUSTON CO., Ltd. May 15, 1952 [May 15, 1951], No. 12305/52. Class 38(3) A direct current motor control system comprises field reversing means for plugging the motor when reversing the direction of rotation thereof, further means being incorporated to limit the motor current during plugging, these latter means also serving to.introduce a time delay between the steps of cutting out resistance from the armature circuit during acceleration of the motor. To start the motor switch 17 is closed, manual operated switch 8 being moved to the forward position to energize forward contactor 6, operation of which causes contactor 11 and relay 14 to be energized. Energization of contactor 6 connects the armature la and the portion 1c of the series field across a D.C. supply 2 whilst energization of contactor 11 removes the short circuit from the portion 1b of the series field. Thus the motor starts under full field with maximum resistance in the armature circuit. The energization of relay 14 places the system ready for further speed control so that when the master controller 16 is moved to position " 3 " contactor 9 is energized so removing part 5a of the resistor 5 from the armature circuit and at the same time de-energizing relay 14. This relay does not immediately drop out due to the presence of the resistor 15 across the operating coil 14a. When relay 14 finally drops out contactor 10 becomes energized to remove the portion 5b of resistor 5 from circuit and to de-energize the contactor 11 thereby to replace the short circuit on the portion 1b of the series field. The motor is now running at full speed with reduced field. To reverse the motor rotation, switch 8 is moved to the reverse position whilst master controller 16 is moved to the " off " position and then returned to position " 3 " again. All the contactors thus drop out and at the same time reverse contactor 7 and contactor 11 become energized. Thus the direction of current in the portion 1b of the series field is reserved and since the armature is still rotating in the forward direction, the motor counter voltage is additive to the supply voltage. Thus a heavy current will flow in the armature circuit so exerting a heavy braking or " plugging " effect on the motor. Resistor 5 cannot be removed from circuit (so as to cause excessive current) since relay 14 cannot be energized because the potential difference between its connecting points, viz., the armature left hand terminal and the point 5c on resistor 5 is practically zero. Relay 14 does not become energized until the speed of the armature is low enough for a potential difference to exist across the operating coil 14a. After energization of the relay 14 contactors 9, 10 operate as before to accelerate the motor in the reverse direction.
Patent GB-119651-A (GB)
Title: Improvements in or relating to Electro-Magnetic Speed-changing Gear.
IPC: F16H61/02
Filed: 1918-07-29
Abstract: 119,651. Menco-Elma Syndicate, (Assignees of Burkhardt, 0. M.). Sept. 22, 1917, [Convention date]. Cone and disk; electric and magnetic.-An electro-magnetic speed changing and reversing gear for motor-vehicles has a pair of electro-magnets H, I mounted on the casing a and co-acting with armatures H<1>, I<1>, provided with internal gear wheels Q, S engaging with planet-wheels M, O. mounted on a carrier K through which the drive from the driving shaft B can be transmitted to the driven shaft C. The armatures have conical extensions adapted to engage braking faces 25 on the casing a, the faces being pressed apart by springs 26 and slidably adjusted by set-screws 29. For speed changing one or other of the magnets is energized as required and by energizing both together the gearing is jammed and exerts a braking action on the driven shaft.